Customer coaching method for location of E-latch backup handles
10273725 ยท 2019-04-30
Assignee
Inventors
- John Robert Van Wiemeersch (Novi, MI, US)
- Robert Bruce Kleve (Ann Arbor, MI, US)
- Ronald Patrick Brombach (Plymouth, MI, US)
- Rajesh K. Patel (Farmington Hills, MI, US)
Cpc classification
Y10T292/57
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
E05B77/54
FIXED CONSTRUCTIONS
B60K35/00
PERFORMING OPERATIONS; TRANSPORTING
H04W4/14
ELECTRICITY
E05B81/82
FIXED CONSTRUCTIONS
International classification
B60K35/00
PERFORMING OPERATIONS; TRANSPORTING
E05B77/54
FIXED CONSTRUCTIONS
H04W4/14
ELECTRICITY
Abstract
A powered door latch system for vehicles includes a controller configured to receive data concerning vehicle operating conditions. The door latch system also includes at least one electrically powered door latch having a powered actuator that can be actuated by the controller to unlatch the electrically powered latch. An emergency release is mechanically connected to the electrically powered latch to mechanically release the latch. The system also includes a user communication device such as a display screen that is operably connected to the controller. The user communication device provides a user with information concerning the location and/or operation of the emergency release if a predefined operating condition such as a loss of electrical power has occurred.
Claims
1. A vehicle comprising: a body; a door movably mounted to the body; a controller configured to receive data concerning vehicle operating conditions; an interior handle on the door; an electrical unlatch switch on the interior handle; at least one electrically powered door latch having a powered actuator that can be actuated by the controller to unlatch the electrically powered latch, wherein the electrically powered latch can also be unlatched mechanically without actuation of the powered actuator; an emergency release that is movably mounted to an inside of the vehicle door at a location that is spaced apart from the interior handle, wherein the emergency release is mechanically connected to the electrically powered latch such that movement of the emergency release mechanically releases the latch without actuation of the powered actuator; and a user communication device that is operably connected to the controller, wherein the user communication device comprises a display screen that provides text explaining the location of the emergency release; and wherein: the controller is configured to cause the powered actuator to unlatch the electrically powered latch when the electrical unlatch switch is actuated, and wherein the controller causes the user communication device to provide a user with information concerning the location of the emergency release if the controller determines that a predefined operating condition has occurred.
2. The vehicle of claim 1, wherein: the controller causes the user communication device to provide a user with information concerning the location of the emergency release if a vehicle mileage is below a predefined mileage.
3. The vehicle of claim 1, wherein: the predefined operating condition comprises a malfunction of the electrically powered door latch.
4. The vehicle of claim 1, wherein: the controller causes the user communication device to provide a user with information concerning the location of the emergency release upon detection of an infrequently used passive key fob.
5. The vehicle of claim 1, wherein: the controller causes the user communication device to provide a user with information concerning the location of the emergency release upon detecting a break in communication between the controller and the electrically powered latch.
6. The vehicle of claim 1, wherein: multiple actuations of the electrical unlatch switch are required to unlatch the electrically powered latch; and the display screen provides information concerning the number of multiple actuations of the unlatch switch that are required to unlatch the electrically powered latch.
7. The vehicle of claim 1, wherein: the vehicle shifts to a back-up power mode and utilizes an emergency power supply capable of actuating the powered actuator if a main electrical power supply of the vehicle fails; the vehicle includes an exterior unlatch switch; the electrically powered latch can be latched by actuating the exterior unlatch switch for at least a required predefined period of time; and wherein: the user communication device is configured to provide a user with information concerning the required predefined period of time if the system has shifted to the back-up power mode.
8. The vehicle of claim 1, including: a transmitter configured to cause a portable phone to provide information concerning the location and/or operation of the emergency release.
9. The vehicle of claim 8, wherein: the transmitter is configured to send a text message to the portable phone concerning the location of the emergency release.
10. The vehicle of claim 1, wherein: the user communication device comprises a speaker that is configured to generate an audio signal to a user.
11. The vehicle of claim 10, wherein; the display screen provides the text after the speaker provides an audio signal prompting a user to look at the display screen.
12. The vehicle of claim 10, wherein: the speaker provides audio information concerning the location and/or operation of the emergency release.
13. The vehicle of claim 12; wherein: the vehicle includes a child lock feature and a transmitter that is configured to wirelessly communicate with one or more portable phones and wherein the controller is configured such that if it does not detect a portable phone in the vehicle that it has previously communicated with and if communication with the electrically powered latch has been interrupted, the controller causes the user communication device to provide audio information concerning at least one of: a) the location and/or operation of the emergency release; and b) the status of the child lock feature.
14. The vehicle of claim 13, wherein: the audio information is provided in at least two languages.
15. The vehicle of claim 1, wherein: the at least one electrically powered latch comprises four electrically powered latches configured to selectively retain left and right front and rear doors in closed positions.
16. The vehicle of claim 1, wherein: the door includes a pocket located below the interior handle; and the emergency release comprises a lever that is rotatably mounted to the door inside the pocket.
17. A vehicle comprising: a body; a door movably mounted to the body; the door having an inner side having a door handle having an electrical unlatch switch, the door including a pocket located below the door handle; a controller configured to receive data concerning vehicle operating conditions; at least one electrically powered door latch having a powered actuator that can be actuated by the controller to unlatch the electrically powered latch upon actuation of the electrical unlatch switch; an emergency release movably mounted to the door inside the pocket, wherein the emergency release is mechanically connected to the electrically powered latch to mechanically release the latch upon movement of the emergency release; a user communication device that is operably connected to the controller, wherein the user communication device comprises a display screen that provides text explaining the location of the emergency release; and wherein: the controller causes the user communication device to provide a user with information concerning the location and/or operation of the emergency release if the controller determines that a predefined operating condition has occurred; an unlatch switch that can be actuated by a user; and wherein: the electrically powered door latch comprises a rear door latch having a child lock feature, and wherein a predefined plurality of actuations of the unlatch switch are required to unlatch the electrically powered door latch if the child lock feature has been deactivated due to a failure in the system; and the user communication device is configured to notify a user that the child lock feature has been deactivated and to provide a user with information concerning the required predefined plurality of actuations.
18. The vehicle of claim 17, including: a child lock activation input device that can be actuated by a driver of the vehicle located in a driver's seat of the vehicle; and: the user communication device indicates that the child lock feature has been deactivated when a vehicle ignition key-on cycle is initiated unless the failure causing deactivation of the child lock feature has been resolved.
19. The vehicle of claim 17, wherein: the failure in the system comprises at least one of a loss of data transfer and a loss of electrical power.
20. The vehicle of claim 17, including: a transmitter configured to cause a portable phone to provide information concerning the predefined plurality of actions.
21. The vehicle of claim 20, including: a back-up electrical power supply operably connected to the transmitter, and wherein: the transmitter is configured to utilize power from the back-up electrical power supply to transmit information to a portable phone whereby the portable phone provides information concerning the location of the emergency release and/or the predefined plurality of actions and/or information concerning deactivation of the child lock feature.
22. The vehicle of claim 21, wherein: the transmitter transmits the information in the form of a text message.
23. A method of providing a user of a vehicle having a powered door latch with information concerning a movable mechanical emergency release on a door in a door pocket, comprising: causing a controller to determine if a predefined malfunction preventing powered unlatching has occurred; wherein the controller causes a screen inside the vehicle to display text explaining the location of the emergency release in the door pocket if a predefined malfunction has occurred.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) In the drawings:
(2)
(3)
(4)
(5)
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
(6) For purposes of description herein, the terms upper, lower, right, left, rear, front, vertical, horizontal, and derivatives thereof shall relate to the invention as oriented in
(7) With reference to
(8) Vehicle 1 also includes one or more doors 10 that are movably mounted to the vehicle structure utilizing hinges or other suitable mechanism. With further reference to
(9) With further reference to
(10) Emergency release lever 18 may be operably connected to the pawl 86 such that rotation/movement of lever 18 as indicated by the arrow A causes pawl 86 to move to the unlatched or disengaged position 86A. It will be understood that emergency release 18 may comprise virtually any release member that is capable of unlatching powered latch 6, and the present invention is not limited to a specific lever or other device.
(11) With further reference to
(12) Powered latches 6A-6D are operably connected to exterior unlatch switches 32A-32D and interior unlatch switches 14A-14D, respectively. In general, actuation of switches 32A-32D or 14A-14D will cause latches 6A-6D to unlatch if the main power supply 26 is available, or if the back-up power supplies 28A-28D in a door is available, and if the system 25 determines that unlatching is proper according to various vehicle operating perimeters. Powered latches 6A-6D may include controllers 38A-38D, respectively. Controllers 38A-38D of powered latches 6A-6D may be configured (e.g. programmed) to individually control the powered actuators/electrical motors 92 of each powered latch 6A-6D utilizing inputs/data received from switches 32A-32D, switches 14A-14D, and the other modules of system 25. Each of the powered latches 6A-6D may include an electrical connection 36A-36D that operably connects the powered latches 6A-6D with the main vehicle power supply 26. As discussed in more detail below, the controllers 38A-38D may be operably connected to a body control module 40 and/or other components by a data network and/or electrical conductors that hard wire the components together.
(13) Body control module 40 may be operably interconnected to an instrument panel cluster 42A, a restraints control module (RCM) that determines if a crash has occurred, and a powertrain control module (PCM) 42 by a network data connection line 44. A center stack display 42D is also operably connected to the body control module 40 by data/network 44. Network 44 may comprise a first High Speed Controller Area Network (HS1-CAN) that operates according to known industry standards. The instrument panel 42A may include one or more display screens 8A (
(14) Powered latches 6A-6D may also be directly connected (hard wired) to body control module 40 by conductor/wires 41A-41D that provide data (door ajar status) to body control module 40.
(15) As discussed above, the powered latches 6A-6D include emergency or backup power supplies 28A-28D, respectively. In the event main power supply 26 is interrupted, the controllers 38A-38D may be configured to cause the powered latches 6A-6D to go into a reserve power mode in which the latches 6A-6D utilize the backup power supplies 28A-28D.
(16) Controllers 38A-38D of powered latches 6A-6D may be configured to send periodic heartbeat signals to body control module 40 and/or other modules/components of system 25. If the heartbeat signal is not received by body control module 40, this generally indicates that a malfunction/loss of operation or communication has occurred. In use, if one or more of the powered latches 6A-6D go into the reserve power mode, the corresponding controller(s) may be configured to stop sending the heartbeat signal to conserve energy. The body control module 40 will then detect that one or more of the latch controllers 38A-38D are off-line (i.e. not communicating with body control module 40). If the off-line condition persists for a predefined time period (e.g. 5 minutes) or a predefined number of key cycles (Key ON/Key OFF), the body control module 40 may be configured to cause one or more of the display screens 8A and/or 8B to provide a seek service display to a user immediately following Key ON or Key OFF events. This display (or audio signal) prompts a user to seek service for the door/powered latch or latches 6A-6D that are off-line. It will be understood that the seek service display and/or audio/voice signal could comprise a variety of messages, images, sounds, etc. and the seek service display/signal would not necessarily have to include the term seek service. On vehicles that do not have an emergency mechanical release lever 18 on each of the doors with a powered latch 6, failure to seek service soon may result in a power reserve in a latch controller 38A-38D slowly depleting over a period of time (e.g. a few days or a week) resulting in the inability to open those doors not possessing the back-up release lever 18. For such situations, if the door cannot be opened to remove the trim screws to gain service access to the door interior power latching system, then such a condition will require extraordinary effort to service the power latching system.
(17) Also, when body control module 40 determines that the seek service warning/prompt should be made, the display 8A and/or display 8B may provide text or other visual material (graphics/images) explaining the location of backup release lever 18 and/or operation of lever 18. The displays 8A and/or 8B may also provide information concerning operation of the backup release lever 18 and/or other information concerning the failure of one or more of the powered latches 6A-6D. In addition to the visual information, audio information may also be provided utilizing one or more speakers 9 (
(18) The powered latches 6A-6D may, optionally, not include backup power supplies 28A-28D, such that the powered latches 6A-6D rely solely on the main battery/power supply 26. If the system 25 is configured in this way, body control module 40 may be configured to cause the displays 8A and 8B to display a message or provide other information concerning the location and/or operation of emergency release lever 18 if a low state of battery charge is detected and/or if other operating conditions indicate that a power failure is likely.
(19) The body control module 40 may be configured to detect when one or more of the vehicle doors are ajar. If a door is ajar even though the body control module 40 did not actuate the corresponding powered latch 6A-6D, this may indicate that emergency release lever 18 was utilized to open the door. If the body control module 40 detects a plurality of door ajar conditions that do not follow powered actuation of the powered latches 6A-6D, controller 40 may be configured to display seek service messages/images/signals utilizing display 8A and/or 8B. Also, during normal operation, actuation of exterior and interior release switches will occur in an alternating manner as users release latches 6A-6D to enter and exit the vehicle. If module 40 detects that an exterior release switch 32A-32D or a corresponding interior release switch 14A-14D has been activated, but also detects that never both the exterior switch 32A-32D and corresponding interior release switch 14A-14D has also being activated, controller 40 may be configured to display a seek service prompt (e.g. at Key ON and Key OFF) until a normal (alternating) pattern of interior and exterior switch activations is detected.
(20) Furthermore, the controller 40 may be configured to display graphic image or text instructions explaining the location and/or operation of the emergency release lever 18 on the driver's door if the controller 40 determines that several drive cycles (Key ON and Key OFF) have occurred with no driver door opening, but with a front or rear passenger opening each of the same drive cycles. Furthermore, controller 40 could be configured to provide a graphic image or text instructions explaining the location/operation of the emergency release lever 18 if the controller 40 determines that ajar events on a specific door have occurred in the absence of interior handle release triggers (i.e. actuations of interior unlatch switches 14A-14D) and no associated preceding exterior handle events (e.g. actuation of exterior unlatch switches 32A-32D).
(21) According to another aspect of the present invention, the rear doors of the vehicle could have a childproof mechanical back-up handle 18 packaged in a location on the door that is difficult for a child to release but relatively easy for an adult to release if information concerning the emergency release is provided. Accordingly, the controller 40 may be configured to provide information (e.g. text instructions and/or images) concerning the location and/or operation of childproof emergency release levers located on or adjacent the rear doors of a vehicle.
(22) According to another aspect of the present invention the rear doors of a vehicle could include a mechanical emergency release lever 18 that is in a location that is readily accessible, but wherein the emergency release lever is covered or blocked by a childproof cover requiring specific release movements or operations. Controller 40 may be configured to provide specific information (e.g. text instructions and/or images) concerning the location and/or removal of a childproof cover that selectively prevents access to an emergency release lever 18 for rear doors of a motor vehicle.
(23) The system 25 may also be configured to utilize passive key fobs that are identified by the body control module 40. If the body control module 40 detects that an infrequently used passive key fob was used to start the vehicle, the controller 40 may be configured to provide information (e.g. text instructions and/or images) concerning the location and/or operation of the emergency release lever 18 utilizing the display screens 8A and/or 8B. Further, the new driver educating routine could be repeated for other events which may suggest a new driver such as a new phone being paired with the vehicle, or a known phone being absent during a drive cycle.
(24) The system 25 (e.g. latch controllers 38A-38D) may be configured to require a sequence of actuations of interior unlatch switches 14A-14D in order to actuate (unlatch) the powered latches 6A-6D, respectively, to permit exit of the vehicle. For example, controllers 38A-38D may be configured to require that each interior unlatch switch 14A-14D is actuated twice within 3 seconds to unlatch the powered latches 6A-6D. A requirement for multiple switch actuations may be utilized to prevent inadvertent unlatching of the powered latches 6A-6D. Also, a multi-action switch actuation requirement may be utilized in situations where the controllers 38A-38D of the powered latches 6A-6D lose connection with the body control module 40 and/or other system components such that vehicle speed information is not available during Key ON. During normal Key ON operation, restraints control module 42B generates periodic signals that are received by other components of the system 25. If an expected signal from the restraints control module 42B is not received by the controllers 38A-38D during Key ON, controller 38A-38D may be configured to require multiple actuations of switches 14A-14D. Also, if the controllers 38A-38D of powered latches 6A-6D do not send the expected heartbeat signal to the body control module 40 when the Key ON condition occurs, this may indicate that controllers 38A-38D have shifted to backup power supplies 28A-28D, and also shifted to a mode requiring multiple actuations of interior switches 14A-14D. If a condition occurs indicating that controllers 38A-38D have likely shifted to a multi actuation mode, controller 40 may be configured to provide information concerning multi-actuation of interior unlatch switches 14A-14D utilizing display screens 8A and/or 8B. Thus, in the event a specified failure has occurred, a user will be provided with information/instructions concerning the multiple interior switch activation procedure.
(25) Vehicle 1 may also be configured such that the rear doors do not include emergency release levers 18. When the vehicle is configured in this way, the controllers 38A-38D of powered door latches 6A-6D may be configured to require multiple switch actuations of interior switches 14A-14D. The child lock status of the system may be determined/stored by body control module 40 or other system components other than latch controllers 38A-38D. Thus, if a loss of data connectivity occurs, the rear door latches 6B and 6D may not retain the child lock status from the interior. The controllers 38B and 38D may be configured to unlatch the rear powered latches 6B and 6D only if interior unlatch switches 34B, 34D are actuated multiple times within a predefined time interval (e.g. 3 seconds). If the child lock feature has been activated for the rear doors, the latches 6B and 6D of the rear doors will unlatch if a predefined multi-action interior unlatch switch activation sequence is performed. If the child lock feature for the rear doors is not active (e.g. due to a loss of data communication), controller 40 may be configured to provide information to a user utilizing screens 8A and/or 8B indicating that the child lock feature for the rear doors is not active, and providing information concerning any required interior unlatch switch sequences that may be required to unlatch rear latches 6B and 6D. Vehicle 1 may include a driver door switch panel (e.g. window lock-out) enabling a driver to select child lock mode. If child lock mode has been selected utilizing the driver door switch panel, but a loss of data connectivity has occurred, controller 40 may be configured to display a no child lock message at every Key-ON cycle until the data connectivity or loss of power situation is resolved.
(26) Also, when one or more of the powered latches 6A-6D go into a back-up power mode, the controller 40 may be configured to require that the exterior handle switches 32A-32D be closed for a predefined period of time (e.g. 3 seconds) in order to latch and/or unlatch the powered latches 6A-6D. Controller 40 may be configured to utilize displays 8A and/or 8B to provide a user with information concerning how to secure/latch the door from the outside by holding the exterior switches 32A-32D for a minimum of 3 seconds (or other predefined time interval).
(27) Vehicle 1 may also include a transmitter 58 and backup power supply 60. The transmitter 58 may be configured to communicate with a portable cell phone or other such wireless device. The system 25 may be configured to send information (e.g. a text message) to a user's cell phone to cause the cell phone to provide/display information concerning the location and/or operation of the emergency release lever 18. Similarly, the system 25 may be configured to send information (e.g. a text message) to a user's cell phone when multiple actuations of interior switches 14A-14D are required to unlatch the powered latches 6A-6D, and when the rear child lock status or feature is not fully active. Furthermore, the system 25 may be configured to utilize the backup power supply 60 to send a text message to a user's cell phone concerning the location and/or operation of the emergency release lever 18 and/or if a multiple actuation of interior unlatch switches 14A-14D is required for exiting the vehicle, and/or if the child lock feature is not fully available for the rear seats.
(28) Furthermore, the system 25 may include a voice command system that provides a voice message to alert a user to a problem and provide instructions concerning operation of the powered latches 6A-6D. For example, the system 25 may provide a voice message Attention, vehicle left hand door latch is without power and will not allow exit, please use the back-up release handle as shown on your vehicle information screen or other suitable message. The voice command may be provided in multiple languages. The system 25 may be configured to include a default language, and the system 25 may initially generate a voice command in the default language, followed by one or more additional languages.
(29) Furthermore, the system may be configured to determine if the vehicle ignition was active with a valid cell phone, but none of the previously paired phones are detected in the vehicle. In these circumstances, the system 25 could assume the driver is not the owner, but rather a temporary driver. If one or more of the powered latches 6A-6D goes off-line and no paired phones are detected, the system 25 could utilize voice commands to coach a user concerning how to exit the vehicle utilizing emergency release lever 18, and/or the system 25 may provide voice information concerning the status of the child lock feature and information concerning unlatching the rear doors in the event the child lock feature is not fully operational. Furthermore, if one or more of the powered latches 6A-6D loses communication, and if no previously paired phone is detected, the system 25 may provide voice warnings or information in a default language, and then also provide warnings and/or information in the native or most common languages of the country or geographic region in which the GPS system determines that the vehicle is located.
(30) It is to be understood that variations and modifications can be made on the aforementioned structure without departing from the concepts of the present invention, and further it is to be understood that such concepts are intended to be covered by the following claims unless these claims by their language expressly state otherwise.